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Write the role of Dilute NaCN in the e...

Write the role of
Dilute NaCN in the extraction of silver.

Text Solution

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NaCN leaches silver from the ore in the presence of air.
`4Ag (s) +8CN^(-) (aq) +2H_(2)O +O_(2) (g) to 4[Ag(CN)_(2)]^(-) +4OH^(-)`.
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U-LIKE SERIES-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-LONG ANSWER QUESTIONS-I
  1. Write the role of I2 in the Arkel method of refining.

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  2. Write the role of Cryolite in the extraction of aluminium.

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  3. Write the role of Dilute NaCN in the extraction of silver.

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  4. Indicate the principle behind the method used for the refining of Nick...

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  5. What is the role of dilute NaCN in the extraction of gold?

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  6. What is 'copper matte'?

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  7. Indicate the principle behind the method used for the refining of zinc...

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  8. What is the role of silica in the extraction of copper?

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  9. Which form of the iron is the purest form of commercial iron?

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  10. Name the method of refining to obtain silicon of high purity.

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  11. What is the role of SiO(2) in the extration of copper?

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  12. What is the role of depressant in froth floatation process?

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  13. Explain the principle and working of the method of electrolytic refini...

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  14. State the role of Depressant in froth floatation process.

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  15. State the role of Silica in the metallurgy of copper.

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  16. State the role of Graphite rod in the electrolytic reduction of alum...

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  17. Explain the role of each of the following in the extraction of metals ...

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  18. Explain the role of each of the following in the extraction of metals ...

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  19. Explain the role of each of the following in the extraction of metals ...

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  20. Write down the reactions which occur in upper, middle and lower zones ...

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